Metallic beam.



Patented Aug. 27, 490|.

G. H. FELT.

METALLI() BEAM.

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GEORGE H. FELT, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE METALLIC VEB COMPANY, OF NEW YORK.

METALLIC BEAM.

SPECIFICATION forming part of Letters Patent No. 681,304, dated August 27, 1901.

Application filed March 14, 1900. Serial No. 8.5 7l. (No model.)

T0 all whom t may concern:

Be it known that I, GEORGE H. FELT, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certainnew and useful Improvements in Metallic Beams, of which the following is a specification.

The object of my invention is to provide a metallic beam or pillar simple in construction and having great strength and rigidity with a relatively small cross-sectional area.

' In the drawings forming part of this specification, Figure lis a cross-section of a beam constructed in accordance with my invention. Fig. 2 is a construction showing a slight modification thereof. Fig. 3 is a View showing a particular form of angle-iron. Fig. 4 shows a movable anvil to be used therewith.

The beam or pillar is made up of channelbars A, placed together, with the flanges outward. In the angle between any two flanges is placed an angle-bar B, which is riveted to the flanges of the channel-bar, as clearly indicated in the drawings. If desired, the channel-bars may be strengthened, as indicated at C in Fig. 2. I thus produce a beam or pillar simple of construction and at the same time of great strength and stiffness, of smaller area in cross-section than those previously constructed, and also a beam in which the difficulty of riveting the parts together is reduced to a minimum.

In Fig. 3 is shown a particular forni of angle iron or bar B', which I use in constructing beams according to my invention. This angle-iron has in the angle between the flanges a strengthening-web D, this web being placed equidistant between the iianges. By this means I greatly increase the stiffness of the structure with but little more expense than is required for ordinary angle-irons. This form of angle-iron also enables me greatly to facilitate the riveting together of the parts.

As illustrated in Fig. 3, I place a weight, E-shaped, as shown, and having on its under side recesses F, spaced apart to correspond to the rivet-holes of the flanges. The hot rivets being placed in the rivet-holes, the weight on the web acts as an anvil and coperates with the riveting-machine, thus enabling me to form several of the rivets at once. The shape of the recesses F is such that they cooperate with the ange and web to shape the rivet-head, as clearly shown in Fig. 3.

It will be obvious that my beam or vpillar may be made round or of any desired shape, that depending on the shape of the channelbars used. Instead of a continuous anglebar I may use a series of angle-irons.

What I claim, and desire to secure by Letters Patent, is-

l. A beam or pillar comprised of channelbars placed together with theirl flanges outward and an angle-iron placed between said flanges and secured thereto, substantially as described.

2. A beam or pillar comprised of channelbars placed together with their anges outward and an angle-iron placed between said flanges and secured thereto, said angle-iron being formed with a web between its anges, substantially as described.

Signed at New York, in the county of New York and State of New York, this 12th day of March, A. D. 1900.

GEORGE I-I. FELT.

lVitnesses:

E. W. HARMON, JOHN J. RANAGAN; 

